George e



(No Model) G. R. WIGHT.

PERMITTATION LOOK.

Patented De0.26, 1882.

lllllllllllllllillllllllllllil NITED STATES PATENT OFFICE.

GEORGE R. WVIGHT, OF NEW' YORK, N. Y.

PERMUTATlON-LOCK.

SPECIFICATICN formingpart of Letters Patent No. 269,765, dated December 26, 1882.

' Application filed March 17,1882. (No model.)

may be brought opposite the recesses to free .the bolt and permit it to he slid while the tumblers remain stationary, and a stop for arresting the bolt in itsoutward position, ofother recesses in the bolt and a stop which will arrest the bolt in its inward movement, so that the last-named recesses will be opposite. said tumblers, and hand-pieces and indexes for said tumblers, all as hereinafter described.

In the accompanying drawings, Figure 1 is a front view of a lock embodying my invention. Fig. 2 is a back view thereof, and Fig. 3 is a transverse section of the same.

Similar letters of reference designate corresponding parts in all the figures.

A A A designate a number of circular rotary tumblers, arranged in suitable chambers or cavities in a plate, B, and severally having flat peripherical portions a a a G designates a sliding bolt, adapted to slide in hearings or a groove in the plate B, adjacent to the tumblers, and provided on the side next the tumblers with recesses c 0 0 The tumblers and this bolt are. so arranged and combined that the tumblers can be turned to enter and engage with the recesses c 0 0 so as to lock or dog the same when it is moved outward, or can be turned to bring the flat portions it a a opposite the said recesses to release the bolt and permit it to he slid inward while the tumblers remain stationary. The bolt also has recesses d (1 d similar to the recesses c c 0 but so arranged that they will be opposite the tumblers when the bolt is moved inward. By this means the tumblers may be turned, when the bolt is moved inward,so that their hand-pieces will not reveal combinations which they make for looking or dogging the bolt. When the bolt is moved inward the end strikes against the inner side of the case, and

the said case therefore forms a stop for arresting the bolt when the recesses d d d are opposite the tumblers. The stop might be otherwise formed.

The hand-pieces D D.D of the tumblers A A A extend outside the front of the lock, and are combined with indexes, whereby they may be set to form any combination. As shown, these indexes consist of marks and numbers designating them, arranged on the face or front of the plate B, and a mark on the hand-pieces, whereby the.hand-pieces may be conveniently set with relation to the first-mentioned marks on the plate B. Preferably the hand-pieces D D 1) are adjustably connected with their tumblers A A A aod'this is accomplished in this example of my improvement by attaching to the rear ends of the shanks of the hand-pieces springs E E E carrying pins or detents c e 0 which may engage with holes, slots, or notches f in the back or rear portion of the tumblers. By pulling back one of the springs E E E so as to disengage its pin or detent e e or e from the one of its holes, slots, or notches ff or f with which it was engaged, and turning the tumbler so that the said pin or detent will engage with another of the said holes, slots, or notches, aditt'erent relation between the hand-piece and tumbler may he established. Thus different combinations may be formed.

On the side of the bolt 0 which is farthest from the tumblers there is arack, G, and with it engages a gear-wheel, F. Other bolts, G H, provided with racks G H, which engage with the gear-wheel F, may in many cases be advantageously employed. When the tumblers are turned to release the bolt 0 the gear-wheel may be turned by means of a hand-piece, F, extending to the front of the plate B, and the several bolts therebyadjusted. A stop, s,consisting of a pin projecting from one of the bolts-in this instance the bbltIL-prevents it from being moved too far out, and as all the bolts are connected by the wheel F, the stop serves the same purpose for both the bolts G and 0. It will therefore be seen that the bolt 0 is arrested by the stop 8 when the recesses c c c are opposite the tumblers, and by the end of the bolt striking the case when the recesses d d d are opposite the tumblers. If but 'the one bolt 0 is used, the gear-wheel F may be omitted, and a hand-piece, applied to the bolt and extended through to the front of the plate B employed for adjusting the said bolt.

It will be seen that by my improvement I produce a very simple, cheap, and convenient lock adapted to a large variety of uses.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is

A look combining in its structure the following elements, to wit: a sliding bolt provided in one edge with a series of pairs of recesses, as described, a series of circular tumblers arranged in line in a longitudinal plane and journaled to rotate at one side of thebolt, and each provided with a flat face, the number of pairs of recesses corresponding, to the number of tumblers, and the latter belngcapable of rotation to bring each of their flat faces opposite the recesses to free the bolt and permit it to be moved inward while the tumblers stand stationary, a stop for arresting the outward movement of the bolt, a stop for arresting the inward movement of the bolt, whereby one of each pairof the bolt-recesses will stand opposite one of the tumblers, whether the bolt is moved in or out, and hand-pieces and indices for the tumblers, the arrangement being such that when the bolt is retracted one of each pair of the recesses will stand opposite the tumblers and the latter can be turned to destroy the combination.

GEO. R. WIGHT. Witnesses:

FRANK I. BASSF/l, GEO. H. PETTET. 

